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pay-per-view.php
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pay-per-view.php
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<?php
/*
Plugin Name: Pay Per View
Description: Allows protecting posts/pages until visitor pays a nominal price or subscribes to the website.
Plugin URI: http://premium.wpmudev.org/project/pay-per-view
Version: 1.4.6
Author: WPMU Dev
Author URI: http://premium.wpmudev.org/
TextDomain: ppw
Domain Path: /languages/
WDP ID: 261
*/
/*
Copyright 2007-2018 Incsub (http://incsub.com)
Contributor: Hakan Evin (Incsub), Arnold Bailey (Incsub), Umesh Kumar ([email protected])
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License (Version 2 - GPLv2) as published by
the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
if ( !class_exists( 'PayPerView' ) ) {
class PayPerView {
var $version = "1.4.7";
/**
* Constructor
*/
function __construct() {
// Plugin locations
$this->plugin_name = "pay-per-view";
$this->plugin_dir = plugin_dir_path( __FILE__ );
$this->plugin_url = plugin_dir_url( __FILE__ );
$this->page = 'settings_page_' . $this->plugin_name;
$this->time_format = get_option( 'time_format' );
$this->date_format = get_option( 'date_format' );
$this->datetime_format = $this->date_format . " " . $this->time_format;
// Read all options at once
$this->options = get_option( 'ppw_options' );
// We will need sessions
if ( ! session_id() ) {
@session_start();
}
register_activation_hook( __FILE__, array( $this, 'install' ) );
// Check if page can be cached
add_action( 'template_redirect', array( &$this, 'cachable' ), 1 );
// Localize the plugin
add_action( 'plugins_loaded', array( &$this, 'localization' ) );
// Initial stuff
add_action( 'init', array( &$this, 'init' ) );
// Initiate Paypal forms
add_action( 'init', array( &$this, 'initiate' ) );
// Calls post meta addition function on each save
add_action( 'save_post', array( &$this, 'add_postmeta' ) );
// Manipulate the content.
add_filter( 'the_content', array( &$this, 'content' ), 8 );
// Clear if a shortcode is left
add_filter( 'the_content', array( $this, 'clear' ), 130 );
// Send Paypal to IPN function
add_action( 'wp_ajax_ppw_paypal_ipn', array( &$this, 'process_paypal_ipn' ) );
// Send Paypal to IPN function
add_action( 'wp_ajax_nopriv_ppw_paypal_ipn', array( &$this, 'process_paypal_ipn' ) );
//Check Payment Status
add_action( 'wp_ajax_ppv_payment_status', array( &$this, 'ppv_payment_status' ) );
add_action( 'wp_head', array( &$this, 'wp_head' ) ); //Print admin ajax on head
// Admin side actions
add_action( 'admin_menu', array( &$this, 'admin_init' ) ); // Creates admin settings window
add_action( 'admin_notices', array( &$this, 'admin_notices' ) ); // Warns admin
add_action( 'add_meta_boxes', array( &$this, 'add_custom_box' ) ); // Add meta box to posts
add_filter( 'plugin_row_meta', array(
&$this,
'set_plugin_meta'
), 10, 2 );// Add settings link on plugin page
add_action( 'admin_print_scripts', array( &$this, 'admin_scripts' ) );
add_action( 'admin_print_styles', array( &$this, 'admin_css' ) );
add_action( 'wpmu_new_blog', array( $this, 'install_on_subsite' ) );
// tinyMCE stuff
add_action( 'wp_ajax_ppwTinymceOptions', array( &$this, 'tinymce_options' ) );
add_action( 'admin_init', array( &$this, 'load_tinymce' ) );
// Add/edit expiry date to user field
add_action( 'show_user_profile', array( &$this, 'edit_profile' ) );
add_action( 'edit_user_profile', array( &$this, 'edit_profile' ) );
add_action( 'personal_options_update', array( &$this, 'save_profile' ) );
add_action( 'edit_user_profile_update', array( &$this, 'save_profile' ) );
//Alway allow Wordpress login
add_action( 'wp_ajax_nopriv_ppw_ajax_login', array( &$this, 'ajax_login' ) );
// API login after the options have been initialized, Add scripts for enabled logins
if ( ! empty( $this->options['accept_api_logins'] ) && $this->options['accept_api_logins'] ) {
if ( $this->facebook_enabled() ) {
add_action( 'wp_ajax_nopriv_ppw_facebook_login', array( &$this, 'handle_facebook_login' ) );
}
if ( $this->twitter_enabled() ) {
add_action( 'wp_ajax_nopriv_ppw_get_twitter_auth_url', array(
&$this,
'handle_get_twitter_auth_url'
) );
add_action( 'wp_ajax_nopriv_ppw_twitter_login', array( &$this, 'handle_twitter_login' ) );
}
if ( $this->google_enabled() ) {
//Handle Google Login
add_action( 'wp_ajax_ppv_ggl_login', array( &$this, 'ppv_process_ggl_login' ) );
add_action( 'wp_ajax_nopriv_ppv_ggl_login', array( &$this, 'ppv_process_ggl_login' ) );
}
}
// Show DB results
global $wpdb;
$this->db = &$wpdb;
// Our DB table name
$this->table = $wpdb->prefix . "pay_per_view";
// Clear errors at start
$this->error = "";
// By default assume that pages are cachable (Cache plugins are allowed)
$this->is_cachable = true;
}
/**
* Add Settings link to the plugin page
* @ http://wpengineer.com/1295/meta-links-for-wordpress-plugins/
*/
function set_plugin_meta( $links, $file ) {
// create link
$plugin = plugin_basename( __FILE__ );
if ( $file == $plugin ) {
return array_merge(
$links,
array( sprintf( '<a href="admin.php?page=%s">%s</a>', $this->plugin_name, __( 'Settings' ) ) )
);
}
return $links;
}
/**
* Load css and javascript
* As of V1.3 this is called from "cachable" method, i.e. when it is required
*/
function load_scripts_styles() {
// Prevent caching for this page
if ( ! defined( 'DONOTCACHEPAGE' ) ) {
define( 'DONOTCACHEPAGE', true );
}
if ( ! current_theme_supports( 'pay_per_view_style' ) ) {
$uploads = wp_upload_dir();
if ( ! $uploads['error'] && file_exists( $uploads['basedir'] . "/" . $this->plugin_name . ".css" ) ) {
wp_enqueue_style( $this->plugin_name, $uploads['baseurl'] . "/" . $this->plugin_name . ".css", array(), $this->version );
} else if ( file_exists( $this->plugin_dir . "/css/front.css" ) ) {
wp_enqueue_style( $this->plugin_name, $this->plugin_url . "/css/front.css", array(), $this->version );
}
}
wp_enqueue_script( 'jquery-cookie', $this->plugin_url . '/js/jquery.cookie-min.js', array( 'jquery' ), $this->version );
wp_register_script( 'ppw_api_js', $this->plugin_url . '/js/ppw-api.js', array( 'jquery' ), $this->version );
wp_enqueue_script( 'ppw_api_js' );
wp_localize_script( 'ppw_api_js', 'l10nPpwApi', array(
'facebook' => __( 'Login with Facebook', 'ppw' ),
'twitter' => __( 'Login with Twitter', 'ppw' ),
'google' => __( 'Login with Google', 'ppw' ),
'wordpress' => __( 'Login with WordPress', 'ppw' ),
'submit' => __( 'Submit', 'ppw' ),
'cancel' => __( 'Cancel', 'ppw' ),
'register' => __( 'Register', 'ppw' ),
'please_wait' => __( 'Please, wait...', 'ppw' ),
) );
//Facebook Script
if ( ! $this->options['facebook-no_init'] ) {
add_action( 'wp_footer', array( $this, 'wp_footer' ) );;
}
//Check and set which social logins are enabled
$logins_enabled = array(
'show_facebook' => $this->facebook_enabled(),
'show_twitter' => $this->twitter_enabled(),
'show_google' => $this->google_enabled()
);
wp_localize_script( 'ppw_api_js', 'ppw_social_logins', $logins_enabled );
if ( $this->options['allow_google_login'] && ! empty( $this->options['google-client_id'] ) ) {
wp_localize_script( 'ppw_api_js', "ppw_ggl_api", array(
'clientid' => $this->options['google-client_id'],
'cookiepolicy' => site_url()
) );
}
}
/**
* Print ajax url
* @since 1.4.0
*/
function wp_head() {
printf(
'<script type="text/javascript">var _ppw_data={"ajax_url": "%s", "root_url": "%s","register_url": "%s"};</script>',
admin_url( 'admin-ajax.php' ), plugins_url( 'pay-per-view/images/' ), wp_registration_url()
);
//Google Sign in script
if ( $this->options['allow_google_login'] && ! empty( $this->options['google-client_id'] ) ) { ?>
<meta name="google-signin-client_id" content="<?php echo $this->options['google-client_id']; ?>"/>
<meta name="google-signin-cookiepolicy" content="<?php echo site_url( '', 'http' ); ?>"/>
<meta name="google-signin-callback" content="ppv_ggl_signinCallback"/>
<meta name="google-signin-scope"
content="https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/userinfo.profile"/>
<script src="https://apis.google.com/js/platform.js" async defer>
{
"parsetags"
:
"explicit"
}
</script>
<?php
} ?>
<?php
}
function wp_footer() { ?>
<div id="fb-root"></div>
<script type="text/javascript">
window.fbAsyncInit = function () {
FB.init({
appId: "<?php echo $this->options['facebook-app_id']; ?>",
status: true,
cookie: true,
xfbml: true
});
};
// Load the FB SDK Asynchronously
(function (d) {
var js, id = "facebook-jssdk";
if (d.getElementById(id)) {
return;
}
js = d.createElement("script");
js.id = id;
js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
d.getElementsByTagName("head")[0].appendChild(js);
}(document));
</script><?php
}
/**
* Login from front end
*/
function ajax_login() {
header( "Content-type: application/json" );
$user = wp_signon();
if ( ! is_wp_error( $user ) ) {
$reveal = 0;
if ( $this->is_subscription_valid( $user->ID ) OR $this->is_authorised() ) {
$reveal = 1;
}
die( json_encode( array(
"status" => 1,
"user_id" => $user->ID,
"reveal" => $reveal
) ) );
}
die( json_encode( array(
"status" => 0,
"error" => $user->get_error_message()
) ) );
}
/**
* Handles Facebook user login and creation
* Modified from Events and Bookings by S H Mohanjith
*/
function handle_facebook_login() {
header( "Content-type: application/json" );
$resp = array(
"status" => 0,
);
$fb_uid = @$_POST['user_id'];
$token = @$_POST['token'];
if ( ! $token ) {
die( json_encode( $resp ) );
}
$request = new WP_Http;
$result = $request->request(
'https://graph.facebook.com/me?fields=email,name,first_name,last_name&oauth_token=' . $token,
array( 'sslverify' => false ) // SSL certificate issue workaround
);
if ( is_wp_error( $result ) || 200 != $result['response']['code'] ) {
die( json_encode( $resp ) );
} // Couldn't fetch info
$data = json_decode( $result['body'] );
if ( ! $data->email ) {
die( json_encode( $resp ) );
} // No email, can't go further
$email = is_email( $data->email );
if ( ! $email ) {
die( json_encode( $resp ) );
} // Wrong email
if ( empty( $data->name ) ) {
$f_name = ! empty( $data->first_name ) ? preg_replace( '/[^_0-9a-z]/i', '_', strtolower( $data->first_name ) ) : '';
$l_name = ! empty( $data->last_name ) ? preg_replace( '/[^_0-9a-z]/i', '_', strtolower( $data->last_name ) ) : '';
}
$name = !empty( $data->name ) ? $data->name : ( $f_name . '_' . $l_name );
$wp_user = $this->user_from_email( $email, $name );
$user = get_userdata( $wp_user );
wp_set_current_user( $user->ID, $user->user_login );
wp_set_auth_cookie( $user->ID ); // Logged in with Facebook, yay
do_action( 'wp_login', $user->user_login );
// Check if user has already subscribed or authorized. Does not include Admin!!
$reveal = 0;
if ( $this->is_subscription_valid( $user->ID ) OR $this->is_authorised() ) {
$reveal = 1;
}
die( json_encode( array(
"status" => 1,
"user_id" => $user->ID,
"reveal" => $reveal
) ) );
}
/**
* Spawn a TwitterOAuth object.
*/
private function _get_twitter_object( $token = null, $secret = null ) {
// Make sure options are loaded and fresh
if ( ! $this->options['twitter-app_id'] ) {
$this->options = get_option( 'ppw_options' );
}
if ( ! class_exists( 'TwitterOAuth' ) ) {
include WP_PLUGIN_DIR . '/pay-per-view/includes/twitteroauth/twitteroauth.php';
}
$twitter = new TwitterOAuth(
$this->options['twitter-app_id'],
$this->options['twitter-app_secret'],
$token, $secret
);
return $twitter;
}
/**
* Get OAuth request URL and token.
*/
function handle_get_twitter_auth_url() {
header( "Content-type: application/json" );
$twitter = $this->_get_twitter_object();
$request_token = $twitter->getRequestToken( $_REQUEST['url'] );
//echo $request_token;
$response = array(
'url' => $twitter->getAuthorizeURL( $request_token['oauth_token'] ),
'secret' => $request_token['oauth_token_secret']
);
exit( json_encode( $response ) );
}
/**
* Login or create a new user using whatever data we get from Twitter.
*/
function handle_twitter_login() {
header( "Content-type: application/json" );
$resp = array(
"status" => 0,
);
$secret = @$_POST['secret'];
$data_str = @$_POST['data'];
$data_str = ( '?' == substr( $data_str, 0, 1 ) ) ? substr( $data_str, 1 ) : $data_str;
$data = array();
parse_str( $data_str, $data );
if ( ! $data ) {
die( json_encode( $resp ) );
}
$twitter = $this->_get_twitter_object( $data['oauth_token'], $secret );
$access = $twitter->getAccessToken( $data['oauth_verifier'] );
$twitter = $this->_get_twitter_object( $access['oauth_token'], $access['oauth_token_secret'] );
$tw_user = $twitter->get( 'account/verify_credentials' );
// Have user, now register him/her
$domain = preg_replace( '/www\./', '', parse_url( site_url(), PHP_URL_HOST ) );
$username = preg_replace( '/[^_0-9a-z]/i', '_', strtolower( $tw_user->name ) );
$email = $username . '@twitter.' . $domain; //STUB email
$wp_user = get_user_by( 'email', $email );
if ( ! $wp_user ) { // Not an existing user, let's create a new one
$password = wp_generate_password( 12, false );
$count = 0;
while ( username_exists( $username ) ) {
$username .= rand( 0, 9 );
if ( ++ $count > 10 ) {
break;
}
}
$wp_user = wp_create_user( $username, $password, $email );
if ( is_wp_error( $wp_user ) ) {
die( json_encode( $resp ) );
} // Failure creating user
} else {
$wp_user = $wp_user->ID;
}
$user = get_userdata( $wp_user );
wp_set_current_user( $user->ID, $user->user_login );
wp_set_auth_cookie( $user->ID ); // Logged in with Twitter, yay
do_action( 'wp_login', $user->user_login );
// Check if user has already subscribed
$reveal = 0;
if ( $this->is_subscription_valid( $user->ID ) OR $this->is_authorised() ) {
$reveal = 1;
}
die( json_encode( array(
"status" => 1,
"user_id" => $user->ID,
"reveal" => $reveal
) ) );
}
/**
* Get OAuth request URL and token.
*/
function handle_get_google_auth_url () {
header("Content-type: application/json");
$this->openid->returnUrl = $_POST['url'];
echo json_encode(array(
'url' => $this->openid->authUrl()
));
exit();
}
/**
* Login or create a new user using whatever data we get from Google.
*/
function handle_google_login () {
header("Content-type: application/json");
$resp = array(
"status" => 0,
);
$cache = $this->openid->getAttributes();
if (isset($cache['namePerson/first']) || isset($cache['namePerson/last']) || isset($cache['namePerson/friendly']) || isset($cache['contact/email'])) {
$this->_google_user_cache = $cache;
}
// Have user, now register him/her
if ( isset( $this->_google_user_cache['namePerson/friendly'] ) )
$username = $this->_google_user_cache['namePerson/friendly'];
else
$username = $this->_google_user_cache['namePerson/first'];
$email = $this->_google_user_cache['contact/email'];
$wordp_user = get_user_by('email', $email);
if (!$wordp_user) { // Not an existing user, let's create a new one
$password = wp_generate_password(12, false);
$count = 0;
while (username_exists($username)) {
$username .= rand(0,9);
if (++$count > 10) break;
}
$wordp_user = wp_create_user($username, $password, $email);
if (is_wp_error($wordp_user))
die(json_encode($resp)); // Failure creating user
else {
update_user_meta($wordp_user, 'first_name', $this->_google_user_cache['namePerson/first']);
update_user_meta($wordp_user, 'last_name', $this->_google_user_cache['namePerson/last']);
}
}
else {
$wordp_user = $wordp_user->ID;
}
$user = get_userdata($wordp_user);
wp_set_current_user($user->ID, $user->user_login);
wp_set_auth_cookie($user->ID); // Logged in with Google, yay
do_action('wp_login', $user->user_login);
// Check if user has already subscribed
$reveal = 0;
if ( get_user_meta( $user->ID, "ppw_subscribe", true) != '' OR $this->is_authorised() )
$reveal = 1;
die(json_encode(array(
"status" => 1,
"user_id"=>$user->ID,
"reveal"=>$reveal
)));
}
/**
* Saves expiry date field on user profile
*/
function save_profile( $user_id ) {
if ( ! current_user_can( 'administrator' ) ) {
return;
}
if ( isset( $_POST["ppw_expiry"] ) ) {
update_user_meta( $user_id, 'ppw_subscribe', trim( $_POST['ppw_expiry'] ) );
}
if ( isset( $_POST["ppw_days"] ) ) {
update_user_meta( $user_id, 'ppw_days', trim( $_POST['ppw_days'] ) );
}
if ( isset( $_POST["ppw_period"] ) ) {
update_user_meta( $user_id, 'ppw_period', trim( $_POST['ppw_period'] ) );
}
}
/**
* Displays expiry date on the user profile
*/
function edit_profile( $current_user ) {
?>
<h3><?php _e( "Pay Per View Subscription", "ppw" ); ?></h3>
<table class="form-table">
<tr>
<th><label for="address"><?php _e( "Expires at" ); ?></label></th>
<td>
<?php
$expiry = get_user_meta( $current_user->ID, 'ppw_subscribe', true );
$days = get_user_meta( $current_user->ID, 'ppw_days', true );
$period = get_user_meta( $current_user->ID, 'ppw_period', true );
$readonly = ( ! current_user_can( 'administrator' ) ) ? "readonly" : "";
?>
<input type="text" name="ppw_expiry" value="<?php echo $expiry ?>" <?php echo $readonly; ?> />
</td>
</tr>
<tr>
<th><label for="address"><?php _e( "Recurring days" ); ?></label></th>
<td>
<input type="text" name="ppw_days" value="<?php echo $days ?>" <?php echo $readonly; ?> />
<input type="radio" name="ppw_period"
value="D" <?php echo checked( $period == "D" || empty( $period ) ); ?> <?php echo $readonly; ?> />Days
<input type="radio" name="ppw_period"
value="W" <?php echo checked( $period == "W" ); ?> <?php echo $readonly; ?> />Weeks
<input type="radio" name="ppw_period"
value="M" <?php echo checked( $period == "M" ); ?> <?php echo $readonly; ?> />Months
<input type="radio" name="ppw_period"
value="Y" <?php echo checked( $period == "Y" ); ?> <?php echo $readonly; ?> />Years
</td>
</tr>
</table>
<?php
}
/**
* Installs database table
*/
function install( $network_wide ) {
if ( ( function_exists( 'is_multisite' ) && is_multisite() ) && $network_wide ) {
$blogs = get_sites();
foreach ( $blogs as $blog ) {
switch_to_blog( $blog->blog_id );
$this->create_table();
restore_current_blog();
}
} else {
$this->create_table();
}
}
/**
* Installs database table on new blog/site creation on multisite
*/
function install_on_subsite( $blog_id ){
//No need to check for is_plugin_active_for_network
//since it will not be active at all on wpmu_new_blog
switch_to_blog( $blog_id );
$this->create_table();
restore_current_blog();
}
/**
* Create Table
*
*/
function create_table() {
global $wpdb;
$sql = "CREATE TABLE IF NOT EXISTS `" . $wpdb->prefix . "pay_per_view" . "` (
`transaction_ID` bigint(20) unsigned NOT NULL auto_increment,
`transaction_post_ID` bigint(20) NOT NULL default '0',
`transaction_user_ID` bigint(20) NOT NULL default '0',
`transaction_content_ID` bigint(20) default '0',
`transaction_paypal_ID` varchar(30) default NULL,
`transaction_payment_type` varchar(20) default NULL,
`transaction_stamp` bigint(35) NOT NULL default '0',
`transaction_total_amount` bigint(20) default NULL,
`transaction_currency` varchar(35) default NULL,
`transaction_status` varchar(35) default NULL,
`transaction_duedate` date default NULL,
`transaction_gateway` varchar(50) default NULL,
`transaction_note` text,
`transaction_expires` datetime default NULL,
PRIMARY KEY (`transaction_ID`),
KEY `transaction_gateway` (`transaction_gateway`),
KEY `transaction_post_ID` (`transaction_post_ID`),
KEY `transaction_user_ID` (`transaction_user_ID`)
);";
require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
dbDelta( $sql );
}
/**
* Localize the plugin
*/
function localization() {
// Load up the localization file if we're using WordPress in a different language
// Place it in this plugin's "languages" folder and name it "ppw-[value in wp-config].mo"
load_plugin_textdomain( 'ppw', false, '/pay-per-view/languages/' );
}
/**
* Provide options if asked outside the class
*/
function get_options() {
return $this->options;
}
/**
* Save a message to the log file
*/
function log( $message = '' ) {
// Don't give warning if folder is not writable
@file_put_contents( WP_PLUGIN_DIR . "/pay-per-view/log.txt", $message . chr( 10 ) . chr( 13 ), FILE_APPEND );
}
/**
* Checks if user is authorised by the admin
*/
function is_authorised() {
$result = false;
if ( $this->options['authorized'] == 'true' && is_user_logged_in() && !current_user_can('administrator') ) {
if ( $this->options['level'] == 'subscriber' && current_user_can( 'read' ) ){
$result = true;
}else if ( $this->options['level'] == 'contributor' && current_user_can( 'edit_posts' ) ){
$result = true;
}else if ( $this->options['level'] == 'author' && current_user_can( 'edit_published_posts' ) ){
$result = true;
}else if ( $this->options['level'] == 'editor' && current_user_can( 'edit_others_posts' ) ){
$result = true;}
}
$result = apply_filters( 'ppv_authorized_role', $result, $this->options );
return $result;
}
/**
* Check if page can be cached or not
*
*/
function cachable() {
global $post;
// If plugin is enabled for this post/page, it is not cachable
if ( is_object( $post ) && is_singular() ) {
$post_meta = get_post_meta( $post->ID, 'ppw_enable', true );
if ( $post->post_type == 'page' ) {
$default = $this->options["page_default"];
} else if ( $post->post_type == 'post' ) {
$default = $this->options["post_default"];
} else if ( $post->post_type != 'attachment' ) {
$default = $this->options["custom_default"];
} // New in V1.2
else {
$default = '';
}
if ( $post_meta == 'enable' || ( $default == 'enable' && $post_meta != 'disable' ) ) {
$this->is_cachable = false;
}
} else if ( $this->options["multi"] && ! is_home() ) {
$this->is_cachable = false;
}
if ( is_home() && $this->options["home"] ) {
$this->is_cachable = false;
}
// Load css files and scripts when they are neccesary
if ( ! $this->is_cachable ) {
$this->load_scripts_styles();
}
}
/**
* Checks if user can see the content, if chosen method is not tool
*
* @param $post
* @param $content
* @param $method
*
* @return mixed
*/
function subscription_status( $post, $method ) {
$settings = get_option( 'ppw_options' );
$duration = !empty( $settings['cookie']) ? $settings['cookie'] * 3600 : 7200;
// If user paid, show content. 'Tool' option has its own logic
if ( isset( $_COOKIE["pay_per_view"] ) && $method != 'tool' ) {
// On some installations slashes are added while serializing. So get rid of them.
$orders = unserialize( stripslashes( $_COOKIE["pay_per_view"] ) );
if ( is_array( $orders ) ) {
$found = false;
// Let's first check if post ID matches. If not, we save to make DB calls which are expensive
foreach ( $orders as $order ) {
if ( is_object( $post ) && $post->ID == $order["post_id"] ) {
$found = true;
break;
}
}
// If $found:true, user has a cookie which matches to the post.
// But we have to be sure that visitor did not play with it.
if ( $found ) {
global $wpdb;
$query = '';
foreach ( $orders as $order ) {
//Escape everything
$query .= $wpdb->prepare( " SELECT * FROM " . $this->table .
" WHERE transaction_post_ID=%d
AND transaction_paypal_ID=%s
AND ( transaction_status='Paid' OR transaction_status='Pending' )
AND %d < transaction_stamp UNION",
$order['post_id'],
$order['order_id'],
( time() - $duration ) );
}
// Get rid of the last UNION
$query = rtrim( $query, "UNION" );
$result = $wpdb->get_results( $query );
return $result;
}
}
}
}
/**
* Changes the content according to selected settings
*
*/
function content( $content, $force = false, $method = '' ) {
global $post;
// Unsupported post type. Maybe a temporary page, like checkout of MarketPress
if ( ! is_object( $post ) && ! $content ) {
return;
}
// If caching is allowed no need to continue
if ( $this->is_cachable && ! $force ) {
return $this->clear( $content );
}
// Display the admin full content, if selected so
if ( $this->options["admin"] == 'true' && current_user_can( 'administrator' ) ) {
return $this->clear( $content );
}
// Display the bot full content, if selected so
if ( $this->options["bot"] == 'true' && $this->is_bot() ) {
return $this->clear( $content );
}
// Check if current user has been authorized to see full content
if ( $this->is_authorised() ) {
return $this->clear( $content );
}
$is_subscription_valid = $this->is_subscription_valid( get_current_user_id() );
// If user has already subscribed content
if ( is_user_logged_in() && $is_subscription_valid ) {
return $this->clear( $content );
}
//PDT Integration
if ( is_user_logged_in() && ! empty( $_GET['ppw_paypal_subscribe'] ) && ! empty( $_GET['tx'] ) && ! empty( $_GET['st'] ) ) {
$ppl = $this->call_gateway();
//Get Transaction Details
$transaction_details = $ppl->pdt_get_transaction_details( $_GET['tx'], $this->options['gateways']['paypal-express']['identity_token'] );
$transaction_details = $this->process_pdt_response( $transaction_details );
//Check Status
if ( ! empty( $transaction_details['status'] ) && $transaction_details['status'] == 'success' ) {
//Update Subscription and show the content
$this->update_subscription( $transaction_details );
//Show the content
return $this->clear( $content );
} else {
//Store Payment pending message in $_SESSION, we can use this to display a message
$_SESSION['ppv_payment_status'] = 'pending';
$_SESSION['ppv_message'] = ! empty( $transaction_details['message'] ) ? $transaction_details['message'] : '';
}
}
// Find method if it is not forced
if ( ! $method && is_object( $post ) ) {
$method = get_post_meta( $post->ID, 'ppw_method', true );
}
// Apply default method, if there is none
if ( ! $method ) {
$method = $this->options["method"];
}
//Get content as per the method and permissions
$result = $this->subscription_status( $post, $method );
if ( $result ) {
// Visitor did paid for this content!
return $this->clear( $content );
}
// If we are here, it means content will be restricted.
// Now prepare the restricted output
if ( $method == "automatic" ) {
$content = preg_replace( '%\[ppw(.*?)\](.*?)\[( *)\/ppw( *)\]%is', '$2', $content ); // Clean shortcode
$temp_arr = explode( " ", $content );
// If the article is shorter than excerpt, show full content
if ( ! $excerpt_len = get_post_meta( $post->ID, 'ppw_excerpt', true ) ) {
$excerpt_len = $this->options["excerpt"];
}
if ( count( $temp_arr ) <= $excerpt_len ) {
return $this->clear( $content );
}
// Otherwise prepare excerpt
$e = "";
for ( $n = 0; $n < $excerpt_len; $n ++ ) {
$e .= $temp_arr[ $n ] . " ";
}
// If a tag is broken, try to complete it within reasonable limits, i.e. in next 50 words
if ( substr_count( $e, '<' ) != substr_count( $e, '>' ) ) {
// Save existing excerpt
$e_saved = $e;
$found = false;
for ( $n = $excerpt_len; $n < $excerpt_len + 50; $n ++ ) {
if ( isset( $temp_arr[ $n ] ) ) {
$e .= $temp_arr[ $n ] . " ";
if ( substr_count( $e, '<' ) == substr_count( $e, '>' ) ) {
$found = true;
break;
}
}
}
// Revert back to original excerpt if a fix is not found
if ( ! $found ) {
$e = $e_saved;
}
}
// Find the price
if ( ! $price = get_post_meta( $post->ID, "ppw_price", true ) ) {
$price = $this->options["price"];
} // Apply default price if it is not set for the post/page
return $e . $this->mask( $price );
} else if ( $method == "manual" ) {
// Find the price
if ( ! $price = get_post_meta( $post->ID, "ppw_price", true ) ) {
$price = $this->options["price"];
}
return $post->post_excerpt . $this->mask( $price );
} else if ( $method == "tool" ) {
$contents = array();
if ( preg_match_all( '%\[ppw( +)id="(.*?)"( +)description="(.*?)"( +)price="(.*?)"(.*?)\](.*?)\[( *)\/ppw( *)\]%is', $content, $matches, PREG_SET_ORDER ) ) {
if ( isset( $_COOKIE["pay_per_view"] ) ) {
$orders = unserialize( stripslashes( $_COOKIE["pay_per_view"] ) );
if ( is_array( $orders ) ) {
foreach ( $orders as $order ) {
if ( is_object( $post ) && $order["post_id"] == $post->ID ) {
$contents[] = $order["content_id"];
} // Take only values related to this post
}
}
}
// Prepare the content
foreach ( $matches as $m ) {
if ( in_array( $m[2], $contents ) ) {
// This is paid
$content = str_replace( $m[0], $m[8], $content );
} else {
$content = str_replace( $m[0], $this->mask( $m[6], $m[2], $m[4] ), $content );
}
}
}
return $this->clear( $content );
}
// Script cannot come to this point, but just in case.
return $this->clear( $content );
}
/**
* Try to clear remaining shortcodes
*
*/
function clear( $content ) {
// Don't even try to touch an object, just in case
if ( is_object( $content ) ) {
return $content;
} else {
$content = preg_replace( '%\[ppw(.*?)\]%is', '', $content );
$content = preg_replace( '%\[\/ppw\]%is', '', $content );
return $content;
}
}
/**
* Initiates an instance of the Paypal gateway
*/
function call_gateway() {
include_once( WP_PLUGIN_DIR . "/pay-per-view/includes/paypal-express.php" );
$post_id = ! empty( $_SESSION["ppw_post_id"] ) ? $_SESSION["ppw_post_id"] : '';
$P = new PPW_Gateway_Paypal_Express( $post_id );
return $P; // return Gateway object
}
/**
* This just makes error call compatible to gateway class
*/
function error( $text ) {
$this->error = $text;
}
/**
* Prepare the mask/template which includes payment form(s)
*